JPS6316755U - - Google Patents
Info
- Publication number
- JPS6316755U JPS6316755U JP11007086U JP11007086U JPS6316755U JP S6316755 U JPS6316755 U JP S6316755U JP 11007086 U JP11007086 U JP 11007086U JP 11007086 U JP11007086 U JP 11007086U JP S6316755 U JPS6316755 U JP S6316755U
- Authority
- JP
- Japan
- Prior art keywords
- generation circuit
- signal generation
- synchronization signal
- reference signal
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の一実施例を概略的に示すブロ
ツク回路図、第２図は基準信号発生回路の具体例
を示す回路図、第３図はリセツトパルス発生回路
の具体例を示すブロツク回路図、第４図は動作を
説明するためのタイミングチヤート、第５図は従
来例を示すブロツク図である。
１……同期信号発生回路、２……電圧制御型発
振器（ＶＣＯ）、３……商用交流電源端子、４…
…基準信号発生回路、５……１／２分周器、６…
…リセツトパルス発生回路、７……位相比較器。
FIG. 1 is a block circuit diagram schematically showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing a specific example of a reference signal generating circuit, and FIG. 3 is a block circuit diagram showing a specific example of a reset pulse generating circuit. 4 are timing charts for explaining the operation, and FIG. 5 is a block diagram showing a conventional example. 1... Synchronous signal generation circuit, 2... Voltage controlled oscillator (VCO), 3... Commercial AC power supply terminal, 4...
...Reference signal generation circuit, 5...1/2 frequency divider, 6...
...Reset pulse generation circuit, 7...Phase comparator.
Claims (1)
回路を備えて成るビデオカメラ装置において、 商用交流電源の交流成分に同期した基準信号を
発生する基準信号発生回路と、 この基準信号発生回路からの基準信号と上記同
期信号発生回路からの同期信号との位相差を検出
する位相ロツク用の位相比較器と、 この位相比較器からの位相差出力に応じて発振
周波数が制御され、発振出力を上記同期信号発生
回路に供給する発振器と、 上記基準信号発生回路からの基準信号と上記同
期信号発生回路からの同期信号とによりリセツト
パルスを発生し、該リセツトパルスにより上記同
期信号発生回路をリセツトするリセツトパルス発
生回路とを具備して成るビデオカメラ装置。[Claims for Utility Model Registration] A video camera device comprising a synchronization signal generation circuit that generates a synchronization signal for a video signal, comprising: a reference signal generation circuit that generates a reference signal synchronized with an AC component of a commercial AC power supply; A phase comparator for phase lock that detects the phase difference between the reference signal from the reference signal generation circuit and the synchronization signal from the synchronization signal generation circuit, and the oscillation frequency is controlled according to the phase difference output from this phase comparator. an oscillator that supplies an oscillation output to the synchronization signal generation circuit; a reset pulse is generated by the reference signal from the reference signal generation circuit and the synchronization signal from the synchronization signal generation circuit; A video camera device comprising a reset pulse generating circuit for resetting the generating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11007086U JPS6316755U (en) | 1986-07-18 | 1986-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11007086U JPS6316755U (en) | 1986-07-18 | 1986-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6316755U true JPS6316755U (en) | 1988-02-03 |
Family
ID=30988750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11007086U Pending JPS6316755U (en) | 1986-07-18 | 1986-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316755U (en) |
-
1986
- 1986-07-18 JP JP11007086U patent/JPS6316755U/ja active Pending
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